The document discusses Datasources in CakePHP, which provide an abstraction layer for accessing and manipulating data. It describes how to configure different types of datasources like CSV, Twitter, and MongoDB. It also explains some core methods that datasources must implement, such as listSources, describe, create, read, update, and delete, to perform common database operations. The document suggests creating your own datasource classes that extend the core DataSource class.

1. Datasource
id:kaz_29(kaz29)
2010/1/30 49 PHP @

2. •
•( ) (E2)
•
•
• CMS
• id:kaz_29(kaz29)
• PHP 4
• baker

3. CakePHP

4. Datasource

5. Datasource

6. Datasource

7. Datasouce

8. Datasource
•
• MySQL, PostgresSQL
http://book.cakephp.org/ja/view/87/DataSources

9. Datasource
• app/config/database.php Database
Datasource
http://book.cakephp.org/ja/view/87/DataSources

10. dbo_source
• RDB
Datasourse
• mysql,pgsql,sqlite,ms
sql,oracle etc...
~/cake/libs/models/datasources

11. Datasource
• CSV Datasource
http://bakery.cakephp.org/articles/view/csv-datasource-for-
reading-your-csv-files
• Twitter Datasource
http://bakery.cakephp.org/articles/view/twitter-datasource
• CouchDB datasource for CakePHP
http://github.com/jperras/divan/blob/master
• mongoDB datasource for cakephp
http://github.com/ichikaway/mongoDB-Datasource
...

12. Datasource
<?php
class DATABASE_CONFIG { datasource
var $csv = array(
'datasource' => 'csv',
'path' => '.csv',
'extension' => 'csv',
'readonly' => true,
'recursive' => false,
);
}
APP/config/database.php database

13. Datasource
//
database
<?php
class User extends Model
{
var $useDbConfig = 'csv' ;
}
database

14. Datasource
class FooController extends AppController
{
var $uses = array('User');
function index()
{
$users = $this->User->find('all') ;
.....
}
}

15. atomfeed Datasouce

17. • app/models/datasources
• hoge_source.php
• HogeSource
• DataSource

18. Method

19. Method
• listSources -
• describe -
• calculate - COUNT(*)

20. listSource
function listSources()
{
return array('bookmarks') ;
}

21. describe
function describe(&$model)
{
return array(
'tag' => array(
'type' => 'string',
'null' => true,
'default' => null,
'length' => 512,
),
);
}

22. caluculate
function calculate(
&$model, $func, $params = array())
{
return array('count' => true);
}

23. method
• create -
• update -
• read -
• delete -

24. • create(&$model, $fields = array(),
$values = array())
• update(&$model, $fields = array(),
$values = array())
$model->id $model->alias

25. • delete($model, $id = null)

26. • read(&$model, $queryData = array())
$queryData
Array
(
[conditions] => Array
(
[feed] => http://b.hatena.ne.jp/hoge/atomfeed
)
[fields] => Array([count] => 1)
[joins] => Array()
[limit] =>
[offset] =>
[order] => Array([0] => )
[page] => 1
[group] =>
[callbacks] => 1
)

27. read
function read(&$model, $query)
{
if ($model->findQueryType === 'count') {
// ....
$result = array(array(array(‘count’=>$count)));
} else {
// ....
$result = array(array($model->alias =>[ ])));
}
return $result ;
}

29. • 1.2 Datasource Plugin
• 1.3 beta Plugin

30. Datasouce
Datasouce (^^

31. ><
question?